From: jb (barrerj1@hotmail.com)
Date: Fri Jul 16 2004 - 20:24:32 GMT-3
Well,
In the labs I've seen, the router is a redistribution point.
It depends on the question. However, I can't be sure.
I can see 3 options to hide my network from the BB
NAT
distribute list
1 way redistribution
(downstream router can not see my network unless I redistribute right?)
Can someone add..
JB
----- Original Message -----
From: "Lord, Chris" <chris.lord@lorien.co.uk>
To: "jbarrera" <barrerj1@hotmail.com>; "Felice Russell"
<felicear@sbcglobal.net>; <ccielab@groupstudy.com>
Sent: Friday, July 16, 2004 4:00 PM
Subject: RE: EIGRP connection to backbone routers
> JB,
>
> The router connecting you to the backbone is not necessarily a
redistribution point between eigrp and another IGP!
>
>
> C.
>
> -----Original Message-----
> From: jbarrera [mailto:barrerj1@hotmail.com]
> Sent: 16 July 2004 21:06
> To: 'Felice Russell'; Lord, Chris; ccielab@groupstudy.com
> Subject: RE: EIGRP connection to backbone routers
>
>
> I was thinking more like not doing 2 way redistribution?
> If I perform 1 way redistribution,
> I still can get the routes from the BB but my backbone does not go to
> the BB.
>
> Still need to figure it out if those routes are supposed to be reachable
> by ping.
>
>
> JB
>
>
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Felice Russell
> Sent: Friday, July 16, 2004 11:29 AM
> To: 'Lord, Chris'; ccielab@groupstudy.com
> Subject: RE: EIGRP connection to backbone routers
>
> I just re-read the question....and I think the distribute-list solution
> is
> the proper one. Passive-interface in eigrp does not permit neighbor
> relationship to form so the router can not receive updates as with some
> other protocols...
>
> http://www.cisco.com/warp/public/103/16.html
> When the passive-interface command is used in EIGRP, the router cannot
> form
> neighbor adjacencies on the interface, or send or receive routing
> updates.
> However, if you want the outgoing routing updates alone be suppressed
> but
> the inbound updates continue to be received (and the routers still
> continue
> to be neighbors), then use the distribute-list command as follows:
>
> R1(config)#access-list 20 deny any
>
> R1(config)#router eigrp 1
> R1(config-router)#no passive-interface serial 0
> R1(config-router)#distribute-list 20 out serial 0
>
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Lord, Chris
> Sent: Friday, July 16, 2004 8:39 AM
> To: ccielab@groupstudy.com
> Subject: EIGRP connection to backbone routers
>
>
> I have come across several sample scenarios where, say, Rx is connected
> to a
> backbone router and they run eigrp between them. You are then asked not
> to
> send eigrp updates from your pod (Rx) to the backbone but you must be
> able
> to recieve routes from the bb. Two different solutions seem to be
> forthcoming:
>
> 1) Rx: router eigrp 10
> distribute-list 10 out e0/0
>
> access-list 10 deny any
>
>
> 2) Rx: router eigrp 10
> eigrp stub receive-only
>
> If we were faced with this in the lab, provided that no other specific
> information was provided, do you think either solution could be used. Or
> have I missed some subtle difference between the two approaches?
>
> Cheers,
>
> Chris
>
>
>
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